Pressure-reducing valve

Patent metadata

Field	Value
Publication number	US-9529368-B2
Application number	US-201414467373-A
Country	US
Kind code	B2
Filing date	Aug 25, 2014
Priority date	Aug 27, 2013
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

A pressure-reducing valve for fluid and gaseous media, more particularly for regulating the pressure in pipeline systems, preferably in buildings, containing a housing preferably consisting of at least one upper and lower part, an interior housing wherein the interior housing has a poppet bore, a diaphragm for dividing the housing into a fluid-free and fluid-flowing area, a pressure adjustment unit, wherein the pressure adjustment unit comprises a spindle, a spring valve, a spring holder and at least one spring, a fastening means and a poppet, wherein the poppet and the diaphragm are connected to one another by fastening means, wherein the poppet is disposed in the poppet bore and at least one sealing element is arranged between the poppet and poppet bore for sealing action, wherein the poppet is formed in one piece and the sealing element is disposed integrally on the poppet or integrally on the interior housing.

First claim

What is claimed is:

1. A pressure-reducing valve for fluid and gaseous media, comprising:
a housing having at least one upper and lower part , an interior housing wherein the interior housing has a poppet bore, a diaphragm for dividing the housing into a fluid-free and fluid-flowing area, a pressure adjustment unit, wherein the pressure adjustment unit includes a spindle, a spring plate, a spring holder and at least one spring, a fastener and a poppet, wherein the poppet and the diaphragm are connected to one another by said fastener, wherein the poppet is disposed in the poppet bore and at least one sealing element is arranged between the poppet and poppet bore for sealing action, wherein the poppet and the sealing element are formed in one piece in a monolithic and homogeneous manner or the sealing element and interior housing are formed in one piece in a monolithic and homogeneous manner.

2. A pressure-reducing valve according to claim 1 wherein the poppet is arranged displaceably in the poppet bore.

3. A pressure-reducing valve according to claim 1 wherein the sealing element seals against an inner surface of the poppet bore.

4. A pressure-reducing valve according to claim 1 wherein the sealing element seals against the outside surface of the poppet.

5. A pressure-reducing valve according to claim 1 wherein the sealing element is pressure-assisted.

6. A pressure-reducing valve according to claim 1 wherein the sealing element has the form of a sealing lip.

7. A pressure-reducing valve according to claim 1 wherein the poppet is made from a material which has a high sliding capacity or a low friction resistance.

8. A pressure-reducing valve according to claim 1 wherein the poppet is made from PTFE, PFA, PVDF and/or TFM or from a material which has at least one addition of these materials.

9. A pressure-reducing valve according to claim 1 wherein the poppet has a sealing cone.

10. A pressure-reducing valve according to claim 9 wherein the sealing cone is disposed integrally on the poppet.

11. A pressure-reducing valve according to claim 1 wherein the pressure adjustment unit has at least two springs.

12. A pressure-reducing valve according to claim 11 wherein the springs are arranged one inside the other.

13. A pressure-reducing valve comprising:
a housing;
a diaphragm for dividing the housing into a fluid-free area and a fluid-flowing area;
a poppet connected to the diaphragm and riding in a poppet bore having an inner wall:
a sealing lip for sealing the poppet and inner wall of the poppet bore, said sealing lip extending from an outer surface of the poppet and slideably engaging the inner wall of the poppet bore or the sealing lip extending from the inner wall of the poppet bore and engaging the poppet; and
the poppet and sealing lip being formed in one piece in a monolithic and homogeneous manner or the inner wall of the poppet bore and sealing lip being formed in one piece in a monolithic and homogeneous manner.

Assignees

• Fischer G Rohrleitungssysteme Ag

Inventors

• Jäckle Timo

Classifications

• Y10T137/7932

  Valve stem extends through fixed spring abutment · CPC title

• G05D16/0655 Primary

  using one spring-loaded membrane · CPC title

• Y10T137/7929

  Spring coaxial with valve · CPC title

• F16K15/144

  the closure elements being fixed along all or a part of their periphery · CPC title

• G05D16/02

  Modifications to reduce the effects of instability, e.g. due to vibrations, friction, abnormal temperature, overloading or imbalance · CPC title